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4069371 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4069371: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: COBALT ALLOY OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-316-8948, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4069371
NSN: 5306-01-316-8948
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialCOBALT ALLOY OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
head_height0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
hole_quantity1
thread_length0.661 INCHES NOMINAL IN
fastener_length1.800 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.563 INCHES NOMINAL IN
end_item_identificationF100PW0229 ENGINE/CORE
NSN5306-01-316-8948
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4069371 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXTENDED WASHER THICKNESS: 0.126 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.800 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.661 INCHES NOMINAL IN
•
HOLE CONFIGURATION STYLE: DOUBLE HEXAGON LONGITUDINAL HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7475 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.416 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.126 INCHES NOMINAL IN
HEAD HEIGHT0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
FASTENER LENGTH1.800 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
THREAD LENGTH0.661 INCHES NOMINAL IN
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7475 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.416 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.645 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
5306PL1499172Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4069371?
4069371 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 4069371?
There is 1 known substitute for 4069371: 5306PL1499172. Substitute compatibility should be verified for your specific system.
What is the NSN for 4069371?
4069371 is cataloged in the U.S. Government catalog under NSN 5306-01-316-8948. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.